Severe Thunderstorm Warning 49, NWS San Angelo, TX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
145 PM CDT FRI MAY 8 1998

THUNDERSTORMS BEGINNING TO DEVELOP IN EXTREME NORTHERN SECTION OF CWA
AT 18Z. MORE THAN ADEQUATE MOISTURE WAS AVAILABLE ACROSS WEST TEXAS
WITH MIDLAND AFD REPORTING 50-60 PERCENT RH UP TO 5000 MSL WITH
SPECIAL 18Z SOUNDING. MODIFIED 12Z MAF SOUNDING ON SHARP INDICATED
CAPES OF 4000 J/KG. WITH ADDITIONAL MOISTURE WOULD NOT BE SURPRISED
TO SEE MDT RISK AREA TO MOVE WEST AND SOUTH OVER CONCHO VALLEY.
DRYLINE EXTENDED FROM EAST OF SANDERSON AND FORT STOCKTON TO WEST OF
HOBBS.

TORNADO WATCH HAS BEEN ISSUED FOR THE BIG COUNTRY AND PORTIONS OF
THE NORTHERN CONCHO VALLEY AND HEARTLAND UNTIL 8 PM CDT. WITH
MOISTURE  TO WEST...SEVERAL LINES OF SEVERE STORMS WILL BE
POSSIBLE THIS EVENING...AS UPPER LEVEL LOW WAS STILL MOVING INTO
EASTERN NEW MEXICO. ADJUSTED POPS UP IN ABILENE AND SAN ANGELO
ACCORDINGLY.

LOOKING TOWARD TOMORROW...EXPECT WEST TO NORTHWEST WINDS OF 20 TO
30 MPH AND GUSTY ACROSS ALL BUT NORTHWEST HILL COUNTRY...AS STRONG
SURFACE LOW WILL BE SITUATED OVER NORTHWEST TEXAS AT 12Z/SAT.

ABI 061/086 40
JCT 057/093 20
SJT 059/093 40

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TXZ049-053-054-064>066-071>073-076>078-098-099-113-114-127-128-
139-140-154-155-168>170-090520-

WEST CENTRAL TEXAS THUNDERSTORM OUTLOOK.
NATIONAL WEATHER SERVICE SAN ANGELO TX
230 PM CDT FRI MAY 8 1998

...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND THIS EVENING NORTH OF A COLORADO CITY...SWEETWATER...TO BROWNWOOD
LINE.

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE
REMAINDER OF WEST CENTRAL TEXAS...

A VIGOROUS UPPER LEVEL STORM SYSTEM WILL INTERACT WITH DAYTIME
HEATING AND A SURFACE DRYLINE TO PRODUCE STRONG THUNDERSTORMS ACROSS
MUCH OF WEST CENTRAL TEXAS THIS AFTERNOON AND EVENING. MODERATE
LEVELS OF INSTABILITY AND A STRONG VERTICAL WIND SHEAR WILL BE
SUFFICIENT FOR SOME OF THESE STORMS TO BECOME SEVERE WITH
TORNADOES...LARGE HAIL AND DAMAGING WINDS POSSIBLE.

SEVERAL LINES OF SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND
EVENING...AS THE DRYLINE AND MOISTURE WAS WELL TO THE WEST NEAR
MIDLAND EARLY THIS AFTERNOON.

SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON.

FOR THE SOUTHWEST TEXAS AND SOUTHEAST NEW MEXICO OUTLOOK SEE
PRODUCT LBBSPSMAF. FOR THE SOUTH CENTRAL TEXAS OUTLOOK SEE PRODUCT
SATSPSSAT. FOR THE SOUTH PLAINS OUTLOOK SEE PRODUCT LBBSPSLBB. FOR
THE CENTRAL OKLAHOMA OUTLOOK SEE PRODUCT OKCSPSOKC.

04

TXZ049-053-054-064>066-071>073-076>078-098-099-113-114-127-128-
139-140-154-155-168>170-090520-

WEST CENTRAL TEXAS THUNDERSTORM OUTLOOK.
NATIONAL WEATHER SERVICE SAN ANGELO TX
230 PM CDT FRI MAY 8 1998

...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND THIS EVENING NORTH OF A COLORADO CITY...SWEETWATER...TO BROWNWOOD
LINE.

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE
REMAINDER OF WEST CENTRAL TEXAS...

A VIGOROUS UPPER LEVEL STORM SYSTEM WILL INTERACT WITH DAYTIME
HEATING AND A SURFACE DRYLINE TO PRODUCE STRONG THUNDERSTORMS ACROSS
MUCH OF WEST CENTRAL TEXAS THIS AFTERNOON AND EVENING. MODERATE
LEVELS OF INSTABILITY AND A STRONG VERTICAL WIND SHEAR WILL BE
SUFFICIENT FOR SOME OF THESE STORMS TO BECOME SEVERE WITH
TORNADOES...LARGE HAIL AND DAMAGING WINDS POSSIBLE.

SEVERAL LINES OF SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND
EVENING...AS THE DRYLINE AND MOISTURE WAS WELL TO THE WEST NEAR
MIDLAND EARLY THIS AFTERNOON.

SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON.

FOR THE SOUTHWEST TEXAS AND SOUTHEAST NEW MEXICO OUTLOOK SEE
PRODUCT LBBSPSMAF. FOR THE SOUTH CENTRAL TEXAS OUTLOOK SEE PRODUCT
SATSPSSAT. FOR THE SOUTH PLAINS OUTLOOK SEE PRODUCT LBBSPSLBB. FOR
THE CENTRAL OKLAHOMA OUTLOOK SEE PRODUCT OKCSPSOKC.

04